Paul Ehrlich, Stanford University biologist, became famous 46 years ago for his book The Population Bomb, which has been widely debunked. He was back this week on HuffPost Live doubling down on his climate change and overpopulation fear mongering.

He has admitted that his outrageously wrong predictions of human “oblivion” didn’t come to pass (we’re still here), but has never given up on the idea that the dangers of overpopulation are growing, blaming Republicans and the media for failing to take action.

He told HuffPost host Josh Zepps that humans must soon begin contemplating “eat[ing] the bodies of your dead” after resources are depleted. He remains an alarmist at 82. He claims that the scarcity of resources will be so bad that humans will need to drastically change our eating habits and our agriculture.

The Population Bomb predicted that “in the 1970s the world will undergo famines — hundreds of millions of people are going to starve to death” and our children”will inherit a totally different world, a world in which the standards, politics, and economics of the 1960’s are dead.”

He attacked pro-life Americans, accusing them of trying to kill women by making abortion illegal, and called for “backup abortions” for any woman whose birth control failed, in an attempt to control “breeding.” He has consistently favored population control, abortion, and I assume, China’s one child policy.

He seems to have missed the Green Revolution entirely. But predicting cannibalism as a necessary evil is going a little too far.

It must be hard when you have one big celebrated idea, and it is widely debunked, and events prove that you were way wrong. Ehrlich is not alone in that. The climate and environmentalism are full of such cases.